{"model":"mk4","model_name":"MK4 Supra","vehicle":"Toyota Supra A80 (1993–2002, 2JZ-GE / 2JZ-GTE)","document":"Repair Manual","section":"ATTE","section_name":"A340 Automatic Trans (GTE)","page":92,"pages_in_section":118,"title":"Dtc 77 No.5 Solenoid Valve Circuit (For Line Pressure Modulation)","section_header":"A340E (2JZ—GTE) Automatic Transmission — Troubleshooting","ocr_text":"AT2–92\nA340E (2JZ—GTE) AUTOMATIC TRANSMISSION – TROUBLESHOOTING\n\nDTC 77 No.5 Solenoid Valve Circuit (For Line Pressure Modulation)\n\nCIRCUIT DESCRIPTION\n\nThe throttle pressure that is applied to the primary regulator valve (which modulates line pressure) causes the\nNo.5 solenoid valve, under electronic control, to precisely and minutely modulate and generate line pressure\naccording to the accelerator pedal effort, or engine power output detected. This reduces the fluctuation of line\npressure and provides smooth shifting characteristics.\nUpon receiving the throttle valve opening angle signal, ECM controls the line pressure by sending a predeter-\nmined duty ratio to the No.5 solenoid valve located in the valve body, activating the solenoid valve, modulating\nthe line pressure, generating throttle pressure.\n\nDTC No. | Diagnostic Trouble Code Detection Condition | Trouble Area\n77 | Any of condition below are detected. (2 trip detection logic)\nSLT⁻ terminal: 0 V or 5 V for 1 sec. or more. | No.5 solenoid valve\nHarness or connector between No.5 solenoid valve and ECM\nECM\n\nWIRING DIAGRAM\n\nECM\nB+\n31\nW-G\n1\nE9 SLT +\nNo.5 Solenoid\n12\n5 LG-R\nE9 SLT⁻\n\nG04320","image":"https://tsrm.sasquatchvc.com/images/mk4/ATTE/ATTE_092.png","url":"https://tsrm.sasquatchvc.com/mk4/tsrm/ATTE/92","prev":{"page":91,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/ATTE/91","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/91"},"next":{"page":93,"url":"https://tsrm.sasquatchvc.com/mk4/tsrm/ATTE/93","api":"https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/93"},"section_url":"https://tsrm.sasquatchvc.com/mk4/tsrm/ATTE","section_api_pages":["https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/1","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/2","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/3","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/4","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/5","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/6","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/7","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/8","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/9","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/10","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/11","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/12","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/13","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/14","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/15","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/16","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/17","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/18","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/19","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/20","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/21","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/22","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/23","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/24","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/25","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/26","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/27","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/28","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/29","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/30","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/31","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/32","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/33","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/34","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/35","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/36","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/37","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/38","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/39","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/40","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/41","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/42","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/43","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/44","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/45","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/46","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/47","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/48","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/49","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/50","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/51","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/52","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/53","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/54","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/55","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/56","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/57","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/58","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/59","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/60","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/61","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/62","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/63","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/64","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/65","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/66","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/67","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/68","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/69","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/70","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/71","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/72","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/73","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/74","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/75","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/76","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/ATTE/77","https://tsrm.sasquatchvc.com/api/pages/mk4/tsrm/AT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transcript of a scanned Toyota factory manual page; verify critical values (torque specs, part numbers) against the image."}